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Video with tracking camera shows lightboost in action

Posted: 26 Jan 2015, 12:33
by Bulbo
I've recorded a video from my Asus VG248QE with active lightboost, 144Hz and 60Hz.

In the first part I dragged a text window over the screen and moved the camera synchronously to it.
You can perfectly see the huge difference between 60Hz and 144Hz and the strobed version.
In the second part I used a Battlefield screenshot.

phpBB [video]


Enjoy!

Re: Video with tracking camera shows lightboost in action

Posted: 26 Jan 2015, 13:14
by Chief Blur Buster
Excellent video!

Yes, this is a manual version of a pursuit camera.
This is an excellent way to video the effects of motion blur reduction.

Enabling the pursuit camera pattern on www.testufo.com/ghosting and www.testufo.com/photo is also another cool way to photographically capture (or video capture) motion blur and/or the lack thereof.

Re: Video with tracking camera shows lightboost in action

Posted: 26 Jan 2015, 16:11
by Black Octagon
GREAT stuff! I almost wish you had dragged the window 2-3x faster, as I do in real life. Nonetheless, great stuff. I wish we had mini-clips like this in monitor reviews...PixPerAn photos are useful but not as representative of actual motion


Sent from my iPhone using Tapatalk

Re: Video with tracking camera shows lightboost in action

Posted: 26 Jan 2015, 22:56
by spacediver
fantastic, gonna share this with anyone who wants a quick easy to understand demo!

Re: Video with tracking camera shows lightboost in action

Posted: 27 Jan 2015, 20:28
by thijs
very educational yes , will show it to a few people too

Re: Video with tracking camera shows lightboost in action

Posted: 02 Feb 2015, 22:21
by CastIrony
So it's not a pursuit camera, but if you have an iPhone 6 or 6+ with 240fps video recording, you can step through it and see each individual frame fade in and out.

I haven't tried it with a strobing screen, but it might be fast enough to give you a general idea of what's going on.

Re: Video with tracking camera shows lightboost in action

Posted: 03 Feb 2015, 09:16
by Bulbo
The camera sits on a box that is connected to the mouse and the mouse sensitivity is adjusted so the speed of the camera movement is almost the same as the window on the screen.

I did not use a high speed camera as it shows only how the frames are getting light and dark by the strobing. All You can see is how the pixels look in that moment. But that does not give an impression how it looks when You look at it with Your eyes.

Using a longer exposure time kind of simulates the inertia of the eyes and reflects the effect very well.
I was surprised myself how well the video matches the real picture.